Sieve



FIG. 1 is a top and side perspective of a sieve, embodying our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof, the front and rear elevation views are identical; and,

FIG. 5 is a side elevation view thereof, the left and right side elevation views are identical.

The broken lines shown are included for the purpose of illustrating the unclaimed portions of the article and form no part of the claim. 

CLAIM The ornamental design for a sieve, as shown and described. 